Company lists · Data refreshed September 2026

Top 13 Scientific consulting firms based in Japan

RevenueBase identified 50 scientific consulting firms headquartered in Japan as of September 2026 and tracks 551 professional contacts across them, including 80 with verified work emails. Jing is the largest hub.

This list covers scientific consulting firms headquartered in Japan, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 14, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 14, 2026 86% judged on-target in blind review
50Companies
551Contacts tracked
80Verified emails
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The 13 largest scientific consulting firms based in Japan

Ranked by team size
Top 13 of 50 scientific consulting firms based in Japan, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to scientific consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidence千代田区, JapanHQ checked Sep 14, 2026501-1,000290 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
2Indirect evidence中野区, JapanHQ checked Sep 14, 2026501-1,00049 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
3Partial evidence文京区, JapanHQ checked Sep 14, 202651-20023 contacts →

Partial evidence

“Seed Planning is a Japan-based research and consulting firm with over four decades of experience supporting decision-making across healthcare, pharmaceuticals, life sciences, and…”

Source: RevenueBase Database · checked Sep 14, 2026
4Indirect evidenceFukuoka, JapanHQ checked Sep 14, 202611-5019 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
5Indirect evidence世田谷区, JapanHQ checked Sep 14, 2026501-1,00014 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
6Indirect evidenceShibuya-ku, JapanHQ checked Sep 14, 20261-1012 contacts →

Indirect evidence

“CJ PARTNERS, Inc.”

Source: RevenueBase Database · checked Sep 14, 2026
7Indirect evidenceSuita, JapanHQ checked Sep 14, 202611-5011 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
8Indirect evidenceJapanHQ checked Sep 14, 2026n/a10 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
9Indirect evidence大阪市 中央区, JapanHQ checked Sep 14, 202611-506 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
10Indirect evidence新宿区, JapanHQ checked Sep 14, 20261-105 contacts →

Indirect evidence

“We’ve solved billions in Fortune 100 litigation and compliance problems across industries such as automotive, insurance, heavy industry, aerospace, consumer products, electronics…”

Source: RevenueBase Database · checked Sep 14, 2026
11Indirect evidence広島市南区, JapanHQ checked Sep 14, 2026201-5003 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
12Partial evidenceTokyo, JapanHQ checked Sep 14, 20261-102 contacts →

Partial evidence

“INGENI CONSULTING is a Japan based consulting firm, focused on pharmaceutical, biotechnology and medical devices industries.”

Source: RevenueBase Database · checked Sep 14, 2026
13Indirect evidence大阪市 中央区, JapanHQ checked Sep 14, 202611-501 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026

Showing 13 of 50 scientific consulting firms based in Japan

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Scientific consulting firms based in Japan at a glance

As of Sep 14, 2026
14.5%Verified-email coverage
11.0Average contacts per company
11-50Median size (employees)
14.0%Largest-city concentration · Jing
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
11
11-50
15
51-200
11
201-500
2
501-1,000
4
1,001-5,000
4
5,001-10,000
1

Email recency for this list is measured worldwide rather than for Japan, so it is reported there. Company counts and contact totals on this page are exact for Japan, over 50 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among scientific consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Japan whose own description of what they do matches “scientific consulting firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names scientific consulting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among scientific consulting firms, and records with no verified work email. Companies headquartered outside Japan are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 80 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 14, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names scientific consulting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many scientific consulting firms are there based in Japan?

RevenueBase identified 50 scientific consulting firms headquartered in Japan as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

NTT Data Institute Of Management Consulting, INC, headquartered in Jing, tops this list with the largest team on record.

Which city has the most scientific consulting firms?

Jing leads with 7 headquartered companies, followed by Da Ban (3) and Tokyo (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 80 verified decision-maker contacts tracked across these 50 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 14, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.